EP 4068289 A1 20221005 - MEMORY, MEMORY TESTING SYSTEM, AND MEMORY TESTING METHOD
Title (en)
MEMORY, MEMORY TESTING SYSTEM, AND MEMORY TESTING METHOD
Title (de)
SPEICHER, SPEICHERPRÜFSYSTEM UND SPEICHERPRÜFVERFAHREN
Title (fr)
MÉMOIRE, SYSTÈME DE TEST DE MÉMOIRE, ET PROCÉDÉ DE TEST DE MÉMOIRE
Publication
Application
Priority
- CN 202011166903 A 20201027
- CN 2021112344 W 20210812
Abstract (en)
Embodiments of the disclosure provide a memory, a memory test system, and a memory test method. The memory includes: an input circuit, configured to: receive an outside clock signal, and output a first test clock signal; a test path selection circuit, connected to the input circuit, and configured to output a second test clock signal according to a read clock command; and an output circuit, connected to the test path selection circuit, and configured to convert the second test clock signal into a third test clock signal and output the third test clock signal to outside of the memory. In the embodiments of the disclosure, a time delay of inputting a clock signal into each chip under test is quantified, to acquire an actual output delay of the chip, thereby improving the accuracy of parallel tests of a plurality of chips.
IPC 8 full level
G11C 29/12 (2006.01)
CPC (source: CN EP US)
G11C 29/006 (2013.01 - EP); G11C 29/1201 (2013.01 - EP US); G11C 29/12015 (2013.01 - CN EP US); G11C 29/14 (2013.01 - EP US); G11C 29/26 (2013.01 - EP); G11C 29/36 (2013.01 - US); G11C 29/50012 (2013.01 - EP); G11C 29/56012 (2013.01 - CN EP); G11C 2029/2602 (2013.01 - EP); G11C 2029/3602 (2013.01 - US); G11C 2029/5602 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
US 11817166 B2 20231114; US 2022165345 A1 20220526; CN 114496050 A 20220513; CN 114496050 B 20241206; EP 4068289 A1 20221005; EP 4068289 A4 20240117; WO 2022088848 A1 20220505
DOCDB simple family (application)
US 202217650317 A 20220208; CN 202011166903 A 20201027; CN 2021112344 W 20210812; EP 21884580 A 20210812